Double edge injector razor



Aug. 13, 1968 G. TREISS DOUBLE EDGE INJECTOR RAZOR Z5 Sheets-Sheet lFiled March 2, 1966 INVENTOR.

GERGE' TRE/.$5

'TORNEY Aug. 13, 196s G, TREES 3,396,464

DOUBLE EDGE INJECTOR RAZOR Filed March 2, 1966 5 Sheets-Sheet 2INVENTOR.

GEORGE TRE/$5 Aug. 13, 1968 G. TREISS DOUBLE EDGE INJECTOR RAZOR 5Sheets-Sheet 5 Filed March 2, 1966 INVENTOR. G50/76 TRE/$5 ATTORNEYUnited States Patent O 3,396,464 DOUBLE EDGE INJECTOR RAZOR GeorgeTreiss, 100 Westbrook Drive, Lancaster, Pa. 17600 Filed Mar. 2, 1966,Ser. No. 531,169 3 Claims. (Cl. 311-63) ABSTRACT OF THE DISCLOSURE Adouble edge injector razor with provisions for varying the position ofthe head in which the blade is carried and for adjusting the cuttingangle of the blade as desired, one edge of the blade being exposed forcutting and the other edge being protected until exposed for use.

This invention relates to an adjustable double edge injector razor andmagazine. The present razors available on the market all have certaindisadvantages. In many razors now available, in order to change bladesit is necessary to change the blade edge exposure setting and topractically disassemble the entire razor. This requires an unnecessarywaste of time, and trial and error adjustment to again obtain asatisfactory blade edge exposure. The presently available razors do nothave protection for the blade edge when not in use. Injector razors nowavailable facilitate the insertion and removal of the blade but thesehave only one cutting edge and lack or have limited adjustment of theblade edge.

The principal object of the present invention is to provide a doubleedge injector razor and magazine wherein the blade can be readilychanged and adjusted as desired.

A further object of the present invention is to provide a double edgeinjector razor wherein only one edge at a time is exposed for shavingwith the other edge protected until ready for use.

A further object of the present invention is to provide a double edgeinjector razor wherein both edges of the blade are protected when theblade head is in a neutral and out of use position.

A further object of the present invention is to provide a double edgeinjector razor and magazine wherein the blade head may be moved toalternate positions exposing either side of the blade, or to a neutralposition for blade edge protection.

A further object of the present invention is to provide a double edgeinjector razor wherein the blade edge exposure may be varied andpositively locked in a multiplicity of positions.

A further object of the present invention is to provide a double edgeinjector razor and magazine wherein the blade may be inserted fromeither side of the blade head in any position.

A further object of the present invention is to provide la double edgeinjector razor and magazine that is simple and inexpensive tomanufacture but rugged and durable in operation.

A further object of the present invention is to provide a double edgeinjector razor and magazine wherein the blades are securely held in themagazine and positive ejection of one blade at a time is provided.

A further object of the present invention is to provide a double edgeinjector razor and magazine wherein the injection of the new blades intothe razor head positively ejects the old blade and accurately and easilypositions the blade in the razor head, both edges of the blade beingprotected during insertion.

A further object of the present invention is to provide a double edgeinjector razor wherein the blade is securely 3,395,464 Patented Aug. 13,1968 ICC held at its four corners but which can be easily and quicklyreplaced if desired.

A further object of the present invention is to provide a double edgeinjector razor wherein the magazine cooperates with the razor head topermit insertion of new blades therein.

Other objects and advantageous features of the invention will beapparent from the description and claims.

The nature and characteristic features of the invention will be morereadily understood from the -following description taken in connectionwith the accompanying drawings forming part thereof, in which:

FIGURE 1 is a view in perspective of a double edge injector razor inaccordance with the invention and in one position for shaving;

FIG. 2 is a vertical sectional view taken approximately on the line 2-2of FIG. l;

FIG. 3 is a fragmentary vertical sectional view similar to FIG. 2showing the razor head in central position;

FIG. 3A is a fragmentary sectional view taken approximately on the line3A-3A of FIG. 2;

FIG. 4 is a vertical sectional fragmentary View taken approximately onthe line 4-4 of FIG. 3;

FIG. 5 is a vertical sectional view taken approximately on the line 5 5of FIG. 4;

FIG. 6 is a fragmentary vertical sectional view, enlarged, takenapproximately on the line 6-6 of FIG. 2;

FIG. 7 is a View in perspective showing an internal hinged or pivotalsupport employed in connection with the invention;

FIG. 8 is a horizontal sectional View, approximately on the line 8 8 ofFIG. 2;

FIG. 9 is a horizontal sectional view, approximately on the line 9-9 ofFIG. 2;

FIG. lO is a horizontal sectional View, enlarged, taken approximately onthe line 10-10 of FIG. 2;

FIG. 11 is a view in perspective showing a double edge injector razorblade used in accordance with the present invention;

FIG. 12 is a view in perspective illustrating the magazine and injectorrazor in position for the insertion of a razor blade into the razor headof the present invention;

FIG. 13 is a vertical sectional View taken approximately on the line13-13 of FIG. 12;

FIG. 14 is a horizontal sectional view taken approximately on the line14-14 of FIG. 13; and

FIG. 15 is a vertical sectional view taken approximately on the line15-15 of FIG. 13.

It should, of course, be understood that the description and drawingsherein are illustrative merely, and that various modifications andchanges can be made in the structure disclosed without departing fromthe spirit of the invention.

Like numerals refer to like parts throughout the several views.

Referring now more particularly to the drawings and specifically FIGS. lto 12 thereof, an adjustable double edge inejctor razor 10 in accordancewith the invention is illustrated. The razor 10 includes ya razor head11 and handle 12. The handle 12 has an outer housing 14 composed of twolike semi-cylindrical ribbed strip portions 15 land two like rectangularstrips 16. The strips 15 can -be of synthetic plastic material, such asnylon, but other suitable materials may be used. The strips 16 arepreferably made of thin gauge spring type metal. The strips 15 have twolengthwise extending grooves 17 wherein the two metal strips 16 areretained. The plastic strips 15 are held together at 20 by correspondingsymmetrical inwardly extending pins 21 and sockets 22 which are fittedtogether during assembly, one of the three pairs 20 being illustrated inmore detail in FIG. 8.

enlarged, taken enlarged, taken The handle 12 at the lowermost portionthereof has a ribbedY cylindrical knob.23 thereon carried on a vertical`upwardly extending shaft 24. The knob 23 has detent holes 25 in thetopmost surface 26 for engagement by dimples 27 in a spring 28 which isretained in the.l strips 15 and bears on the top surface 26 of the knob23. The knob 23 can have as many holes 25 as desired and to provide thedesired range of blade adjustment, eight being a preferred number. Theknob 23 has number indicia engraved or otherwise marked on its outsidesurface corresponding to the detent holes 25. The upwardly extendingshaft 24 is journaled at-its lower end 31 in a plate 30 which is joinedto the strips 15 and 16 at its outer edge and serves also to hold thestrips 15 and 16 together. The 'shaft 24 is journaled at its upper end32 in a plate 33 which is similar to plate 30 and is securelyy fastenedto the strips 15 and 16 at its outer edge. Two retaining collars 34 areprovided attached to the shaft 24 one on each side of the platel 33which collars 34 serve to preventvertical movement of the shaft 24.y

Theshaft 24 on the upper side of plate 33 terminates in a hollowinteriorly threaded screw receiving socket portion 36. A shaft 37 isprovided threadably engaged at its lower end in the threaded socketportion 36 of the shaft 24. The shaft 37 extends vertically upwardlythrough a hole 38 in a base plate 39 and through a collar 40 and isintegral with a horizontal shaft 41 of razor blade base assembly 42. Ahelical spring 44 on the shaft 37 is interposed 'between the collar 40and the base plate 39.

The base plate 39, as shown more fully in FIG. 7, is of rectangularshape carried in retaining brackets 43 in strips 15 with two verticalupwardly extending 'support arms 45 carried thereby and integraltherewith. The arms 45 have two horizontally outwardly extending halfcylindrical bearings 46 integral therewith having outer curved bearingsurfaces 47 Iand inner curved bearing surfaces 48.

The razor blade head 11 has an outer housing 50 which is composed of twosymmetrical halves 51. rPhe halves 51 each has a downward plate 52 ofcurved shape in cross section, the plates 52 being retained and pressedtogether by the upper end portions of strips 16.

Referring now specifically to FIGS. 2, 3, 5 and 7 the housing plates 52have on the -bottom thereof downwardly extending arcuate arms 55 whichextend around the outer surface 47 and retain the blade housing 50 tothe bearings 46.

Two bearing ribs 56 are also provided on the plate portions 52 spacedinteriorly of arms 55 and which engage the inner bearing surfaces 48 ofthe bearings 46.

The plates 52 have attaching plates 57 extending upwardly integraltherewith which plates 57 have vertical ears 58 on each end thereofconnected by a curved guard plate 60.

The attaching plates 57 at their lower portions have stop ledges 59 and67 for resilient engagement by the upper end portions of the springstrips 16. A slot 61 is provided between guard plate and plate 57 forthe reception of a razor blade bed plate 62. The ears 58 of the housing50 each has a key or tongue hole 54 therein for the reception of atongue of ya blade magazine 71. The ears 58 each also has one half of :ahorizontal blade receiving slot 63 formed therein for the reception of arazor blade 75. T'he ears 58 at the ends of the slot 63 have bladeengaging face portions 77 which engage the upper surface of the blade atthe corners thereof when the housing half sections 51 are held togetherand in their central and tilting operating positions, and engaged by thebed plates 62. The bed plates 62 have horizontal serrated guard bars orribs 72 extending therealong and bearing on the outer edge 58a of ears58 to provide a guard for the edge 100 of the razor blade 75 as shownmore fully in FIG. 3A. The razor blade bed plates 62 are symmetrical andattached to angularly inclined downwardly extending legs 6,4 which legs64 are re-A wat@ s at the bottom by a sprmg retaining clip 65. The clip65 extends around the shaft 41 which is held Iby the legs 64, with astruck out portion 66 to permit the shaft 37 to pass therethrough andengage the 'shaft 41. The clip 65 has two tongues 68 which arecentrallylocated and engaged inslots 69 in the legs 64, the bottomportion 'of the clipf65v bearing on top of collar 40 whichA is urgedupwardly by spring 44.,i

The clip 65`draws the legs, 64 together-tand accordingly bed plates 62,guard bars .72 as well as the head portion 11 are held in assembledrelation. y..-

The blade magazine 71, as illustrated in FIGS. 12 to 15, includes anouter housing ofsynthetic plastic-or other material 'as desired. Thehousing 80 has upper horizontal wall 81, lower horizontal wall 82,vertical front wall 90, inclined rear wall 91', Vand vertical-side'connect-v ing walls 83. The upper wall 81 has av slot' 84fthereinextending its length for the reception ofa tapered rectangular bladeengaging tongue 85 of a blade pusher 86.v The blade pusher 86 has anupper plate 87 attached'to the tongue 85 and' with suitable grippingsurface '88 thereon. The housing 80, on the front wall 90 there-of, hasa tongue 70 thereon of tapered rectangular shape adapted to engage theslot 54 in the ears 58 and is adapte ed to spread the ears 58 forinsertion of a blade 75 into the razor 10. The wall -90 has a slot 92therein at the top thereof of such height and width as to permit asingle blade 75 to pass therethrough. A spring 94 is shown which bearson the bottom wall 82 and the lowermost blade of a stack of razor blades75 urging a stack of blades 75 upwardly'along guideribs 96 and 97 forengagement by the tongue 85 of the pusher 86. vThe guide `ribs 96 `and97 orient the blades 75 and position them for movement upwardly and fordirected and guided discharge. Projections 98 are provided beneath thetop wall 81 for engagement by projections 99 on the pusher 86 forlimiting the outward movement of the pusher 86.

A preferred form of blade 75 (see FIG. 11) isv of rectangular shape withtwo cutting edges 100 and tapered slots 101 in front and rear-edges 102and 103 of the blade 75. The slots 101 are adapted to receive the pushertongue 85 and due to their taper do not hang up on the tongue 85. Theinterengagement of the pusher tongue 85 and slot 101 Orients the blade75 to be advanced and during advancing.

At the same time upon return of the tongue 85 with overtravel engagementclearance is provided to facilitate engagement at the slot 101 of thenext blade to beadvanced.

The mode of use will now be pointed out. j

The razor 10 may have its blade head 11 moved to any desired position,as shown in FIGS. 2, 3 and 12. The tongue 70 of the blade magazine 71 isinserted into the hole 54. This tongue 70 causes the housing halves 51to separate and any old blade upon insertion is no longer secured in thehead 11. This separation also provides clearance for entry ofthe pushertongue 85. The blade pusher 86 is moved forward in the slot 84 whereinthe topmost blade of the blades 75 is engagedbythe pusher tongue 85 inits slot 101. Further movement of the pusher 86 forces the blade 75 outthe slot 92 and into the slot 63 in the blade head 11. This forwardmovement continues until the blade is positioned as desired or vstop 98is reached. Entry of a new blade 75 from the -magazine 71 effectsejection of the old blade 75 through the opposite blade access opening63. i

The tongue 70 of magazine 71 is withdrawn from the hole 54 and thehalves 51 of the housing 50 are forced back together by the springstrips 16 and the clip 65. The blade 75 is then gripped at its fourcorners by the inside edges 77 of the ears 58.

In order to obtain blade edge exposure for shaving, the razor head 11 ismoved either to the right or left position to expose above one of theguide bars 72 one edge 100` of the blade 75 for use. while protectingthe other edge i tained andiheld together.A

100 by its downward movement in slot 61 below the top edge of the guardbar 72. The tilting of the bed plates 62 with respect to the blade 75and guard plate 60 effects such edge exposure, as shown in FIG. 2 from aprotected blade position as shown in FIG. 3.

The knob 23 is then turned to the desired numbered position. The shaft24 thru threads 36 and shaft 37, causes the blade base assembly 42 tomove upward or downward depending on the blade edge exposure requiredand direction of motion of knob 23 which acts on the base plate 62 tocause greater or less of the blade edge 109 to be exposed above theguard bar 72 in the slot 61. Further adjustment can be m'ade as desired.When the other blade edge 190 is desired to be utilized for shaving, theblade head 11 is moved to opposite position and used as needed withoutany further adjustment unless adjustment is desired.

It will be noted that the central positioning of the head 11,illustrated particularly in PIG. 3, provides for guarding the bladeedges 100 during shipping, and between successive uses, for protectionof the blade edges 10U and for safety.

I claim:

1. A double edge injector razor comprising a blade having oppositelongitudinal cutting edges,

a handle,

a blade `receiving and holding head having opposite separable housingportions,

each of said housing portions having ends with an outer guard plate anda guard bar therebetween,

said housing portions each having a longitudinal slot between the guardplate and the guard bar for blade edge exposure,

said housing portion having aligned slots in said ends for blade access,

said housing portion each having blade engaging portions at the ends ofthe longitudinal slot for engagement with top corners of the blade,

opposite bed plates at least one of which is in longitudinal centralengagement with the blade,

pivotal connections between said housing portions and said handle forshifting said head to a cutting position,

pivotal connections between said bed plates and said handle, and

members carried by said handle for varying the relative locations ofsaid pivotal connections and thereby varying the cutting edge exposureof the blade.

2. A double edge injector razor as dened in claim 1 in which saidpivotal -connections between said bed plates `and said handle has ashaft extending longitudinally of said handle, and

a positioning shaft in threaded engagement with said rst mentionedshaft, and

a positioning knob connected to said positioning shaft for rotating saidpositioning shaft.

3. A double edge injector razor as defined in claim 1 in which saidhousing portions are separable,

said bed plates are separable and have leg portions,

a resilient clip holds said housing portions and said leg portions inassembled relation.

References Cited UNITED STATES PATENTS 1,441,016 1/1923 Matthews 30--501,694,337 12/ 1928 Oberheim 30-50 2,327,388 8/1943 Auerbach 30-40.22,329,692 9/ 1943 Auerbach 30-64 2,683,929 7/ 1954 Auerbach 30-40.2 X3,171,197 3/1965 Boyd 30--65 3,178,814 4/1965 Craig 30-62 3,317,9955/1967 Bord 30-87 MYRON C. KRUSE, Primary Examiner.

